Xiamen Online Union Technology Co., Ltd
                                                                                                           
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64528556 ABB High-performance Industrial Circuit Breaker

Price Negotiable
Price: 1-99$
MOQ: 1
Delivery Time: in stock / 1-3 work days
Brand: ABB
Product Description
ABB 64528556 High-performance Industrial Circuit Breaker
The ABB 64528556 is a high-performance industrial circuit breaker designed for robust electrical protection in low-voltage power distribution systems. Engineered for reliability in demanding environments, this device provides advanced overcurrent and short-circuit protection, ensuring operational safety and minimizing downtime in industrial, commercial, and infrastructure applications. Its compact design integrates thermal-magnetic tripping technology, enabling precise response to both gradual overloads and sudden fault currents. The circuit breaker is compatible with ABB's modular distribution systems, supporting flexible installation and scalability in panel boards and switchgear.
Technical Specifications
Model 64528556 (Tmax T3N 250A 3P)
Pole Configuration 3-pole (three-phase + neutral connection capability)
Rated Current (In) 250 A
Rated Ultimate Short-Circuit Breaking Capacity (Icu) At 400 VAC: 50 kA (compliant with IEC 60947-2)
Rated Service Short-Circuit Breaking Capacity (Ics) 100% of Icu (50 kA at 400 VAC)
Thermal-Magnetic Trip Characteristics
  • Thermal Trip: Adjustable from 0.7-1.0 × In (for overload protection)
  • Magnetic Trip: Fixed at 5-10 × In (for short-circuit protection)
Voltage Rating
  • Rated Operational Voltage (Ue): 690 VAC (50/60 Hz)
  • Rated Insulation Voltage (Ui): 800 VAC
Mechanical Endurance 20,000 operating cycles (O-C-O test at rated current)
Electrical Endurance 10,000 operating cycles at 1.1 × In
Connection Type Front-terminal screw clamps (compatible with 35-150 mm² conductors)
Protection Features
  • Thermal Protection: Bimetallic strip delays tripping for transient overloads, preventing nuisance trips
  • Magnetic Protection: Instantaneous trip for high-fault currents (e.g., phase-to-phase shorts), limiting equipment damage
  • IP Protection Rating: IP20 (front face), suitable for enclosed panel installations
Operating Temperature Range -25°C to +70°C (derating required above 40°C)
Compliance Standards IEC/EN 60947-2, UL 489, CSA C22.2 No. 5-14
ABB 64528556 Industrial Circuit Breaker
Our Services
  • All products are new, original, and of high quality
  • Competitive pricing with large quantity stock availability
  • Specialized in sourcing hard-to-find components
  • Prompt response to all inquiries within 24 hours
  • Fast shipping with secure packaging
  • Items shipped within 1-3 working days after payment
  • Excellent after-sale service
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Company Xiamen Online Union Technology Co., Ltd
Location 103, No.26, Zhenhai Road, Siming District, Xiamen, China
Contact Person Jeff Wu

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